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[Bug 593971] New: Grub root= incorrect with 2 SCSI controllers
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Tue, 6 Apr 2010 10:38:50 +0000
  • Message-id: <bug-593971-21960@xxxxxxxxxxxxxxxxxxxxxxxx/>

Summary: Grub root= incorrect with 2 SCSI controllers
Classification: openSUSE
Product: openSUSE 11.3
Version: Milestone 4
Platform: i686
OS/Version: Other
Status: NEW
Severity: Major
Priority: P5 - None
Component: Installation
AssignedTo: bnc-team-screening@xxxxxxxxxxxxxxxxxxxxxx
ReportedBy: mludvig@xxxxxxxxxxxx
QAContact: jsrain@xxxxxxxxxx
Found By: ---
Blocker: ---

User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:
Gecko/2010020400 SUSE/3.0.18-0.1.2 Firefox/3.0.18

My Dell PowerEdge 800 has two SCSI controllers with 12 HDDs hanging off.
Installation was made to /dev/sde2 which is a partition on one of the internal
disks. Grub menu.lst has correspondingly root=/dev/sde2. So far so good.

However after reboot the harddrive with root filesystem is detected as /dev/sdi
and obviously booting fails because the root fs can't be mounted. Manual update
of root= in /boot/grub/menu.lst from /dev/sde2 to /dev/sdi2 fixes the problem,
on the other hand the installer left the system unbootable which is certainly

My guess is that during installation the drivers for SCSI controllers are
loaded in a reverse order than in normal boot, leading to different disk names.
While this may not be a common problem for desktop users it may certainly hit
users of enterprise servers with multiple disk controllers.

Verified in 11.3 Milestone 1 and Milestone 4

Reproducible: Always

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